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1、j匕立交通太堂亟±堂位途塞△旦墨!基△￡!ABSTRACTABSTRACT：AsthemainstreamB3G／4Gtechnology,LTE-Acanprovideuserswim11ighrateandlargecapacitycommunicationservice．Withthedeepeningofresearchworks，LTEnetworkshavebeendeployedinmanycountries．Asoneofthekeytechnologies，Relaycanoptimizecoverageofthenetworkandincreaset
2、hesystemcapacity．ThediscussedmainlyconcentrationonRelayframeformatdesign，HARQdesign，backhaullinkdesignissuesin3GPPrelatedproposals．Butresearchonmobilerelayisatthedegreeofpreliminaryinquiry．Inordertomeettheneedsofincreasinghighspeeddataserviceinthefuturerailwaymobilecommunicationsystem，LT
3、E-Advancedsystemputforwardhigherrequirementstothedistrict’Saveragethroughputanduserdatarateofthecelledge．Therefore，undertherequestofthehighsystemcapacity，inordertoachieveLarge-scaleandhighqualitycoverageofhighfrequency，improvetheservicequalityofmobilecommunicationnetwork，theoryandtechnol
4、ogyofmobilerelayisconcerned．MobilerelaytechnologyalthoughCangetthegainoncoverageandcapacity，reducesthecostofnetworkconstructionintheory．Butpotentialproblemswhichtherelaytechnologybringsalsoveryobvious，themainproblemistheinterferenceofcomplexproblemunderanewenvironment，SOthesolutionofthei
5、nterferenceproblemwhichmobilerelaybringsisimportant．Radioresourceallocationisanimportanttechnologyinlinklayer．itplaysanIndispensableroletoincreasecapacityofwirelessnetworks．LTE—AadoptsOFDMtechnology，makethenetworkstructuresimplify，proposedahigherutilizationrateoffrequencyspectrumanduserr
6、equirements，SOdynamicresourceallocationmechanismisfacingmanynewproblemsandchallengesinLTE—A．ThispaperfirstlyintroducethetechnologyofLTE—Aradioresourcemanagementandmobilerelay．Withthecharacteristicsofcellsalongtherailwayandcommunicationneedsofpassengersonthetrain．Weintroducethedeploymento
7、fmobilerelayandradioresourceneeds．ThenthepaperanalyzeswirelesschannelallocationstrategyalongtherailwayinLTE—A，andproposeanovelwirelesschannelallocationstrategyforcellsalongtherailway．Thenovelmethodhasahighstabilityaswellasahighcapacityandchannel1V，．癆～j＆哀童適太堂亟±堂焦論塞△旦S!B△￡!
